Home / 572,019.21-789,384.35-313,900.50

Finding the Fourth Proportional to 572,019.21, 789,384.35 and 313,900.50

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Solution

The fourth proportional to 572,019.21, 789,384.35 and 313,900.50 is: 433,181.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,019.21 : 789,384.35 = 313,900.50 : x
  2. Step 2: Convert to fraction form
    572,019.21/789,384.35 = 313,900.50/x
  3. Step 3: Cross multiply
    572,019.21x = 789,384.35 × 313,900.50
  4. Step 4: Simplify right side
    572,019.21x = 247,788,142,157.18
  5. Step 5: Solve for x
    x = 247,788,142,157.18/572,019.21
  6. Step 6: Final answer
    x = 433,181.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.